Airtac BSED Clamping Double Acting Cylinder BSED40X500S
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED40X500S combines a double-rod ISO 15552 cylinder — a Ø16mm rod out BOTH ends for equal force both directions — with an integrated spring-applied, air-released ROD LOCK that holds up to 900 N in either direction if air is lost. Ø40mm bore, 500mm stroke, PT1/4 ports, G1/8 lock-release.
- BoreØ40 mm
- Stroke500 mm
- Static holding force900 N
- ConfigurationDouble rod + lock
- Cylinder portPT1/4
- Lock-release portG1/8
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac BSED Clamping Double Acting Cylinder BSED40X500S
The AirTAC BSED40X500S is a double-acting, double-rod ISO 15552 profile cylinder with an integrated spring-applied, air-released rod lock. A rod exits both ends, delivering equal drive force of 528 N each way at 0.5 MPa. The collet lock provides a 900 N static holding force to secure your load instantly.
This 40 mm bore unit features a PT1/4 cylinder port, a separate G1/8 lock-release port, and a 30 mm adjustable air cushion at both ends. The -S magnet supports CMSE reed and DMSE electronic sensors for precise position feedback.
Double Rod + 900 N Rod Lock (Ø40mm)
A rod exits both ends for symmetric force and back-rod tooling, and a spring clamps the collet so the Airtac BSED Clamping Double Acting Cylinder BSED40X500S holds its position in both directions on air loss or E-stop. Apply 0.15–0.7 MPa to the G1/8 release port to unlock. Engage only after the rod has stopped (not a dynamic brake), and release only when both piston sides are pressure-balanced; allow ≥0.5 s for full release.
Airtac BSED Clamping Double Acting Cylinder BSED40X500S Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED40X500S |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø40 mm |
| Stroke | 500 mm |
| Static holding force | 900 N |
| Cylinder port | PT1/4 |
| Lock-release port | G1/8 |
| Configuration | Double rod, double acting |
|---|---|
| Operating pressure | 0.15 – 0.7 MPa |
| Unlocking pressure | 0.15 – 0.7 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Max stroke | Up to 800 mm |
Specifications follow the official AirTAC BSED datasheet. Rod thread M12×1.25 both ends. Mounting (BSED): Basic, LB, FA, TC. Port options: PT (standard) / G (BSPP); lock-release port is G1/8.
Theoretical Output Force (Ø40mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa (max) | 739 N |
| Max drive (@0.7 MPa) | 75 kgf |
A rod exits both ends, so force is equal on extend and retract. Drive force is separate from the 900 N static lock holding force. Size with a safety margin.
Model Code: Airtac BSED Clamping Double Acting Cylinder BSED40X500S
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 40 | Bore size in mm. |
| ×500 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensor sensing. |
Thread: PT (blank) / G. Mounting (BSED): Basic, LB, FA, TC. Related: SED (double rod, no lock), BSE (single-rod rod lock). Sensors CMSE/DMSE fit magnetic BSED.
Where the Airtac BSED Clamping Double Acting Cylinder BSED40X500S Is Used
Vertical Lift Jigs
Holds vertical jigs securely with 900 N of fail-safe force on air loss, while the double-rod design provides 528 N of equal lifting and lowering force.
Machining Stops
Clamps workpiece stops instantly during E-stops. The rear rod allows mounting a flag for DMSE sensors without taking up primary tooling space.
Pallet Diverter
Diverts pallets with 739 N of both-way drive at 0.7 MPa, locking the diverter arm in place mid-cycle to prevent drift during transit.
Is the Airtac BSED Clamping Double Acting Cylinder BSED40X500S the Right Cylinder?
Choose this model when you need symmetric both-way force and fail-safe holding up to 900 N. If your load requires less drive force, step down to the 32 mm bore (345 N @0.5 MPa, 600 N hold). If you need more power, step up to the 50 mm bore (825 N @0.5 MPa, 1400 N hold). Always engage the lock only after the rod stops, and release it only when both piston sides are pressure-balanced, allowing at least 0.5 s.
With a 500 mm stroke, use external guides to prevent side loads from binding the rod and causing premature seal wear. When replacing, match the 40 mm bore, 500 mm stroke, PT port, and magnet option.
Quick checklist
- ✓ Need both symmetric force AND fail-safe hold?
- ✓ Load to hold ≤ 900 N?
- ✓ Back-rod space for tooling/flag
- ✓ Lock engaged only when stopped
- ✓ G1/8 release-air line available
Installation & Safety Notes
- check Engage the lock only after the rod has stopped — not a dynamic brake.
- check Release only when both piston sides are pressure-balanced.
- check Allow ≥0.5 s for full release before commanding motion.
- check Feed the G1/8 release port with 0.15–0.7 MPa clean air.
- check Support both rod ends; avoid side load.
- check Use BSED mounting (Basic/LB/FA/TC).
Airtac BSED Clamping Double Acting Cylinder BSED40X500S FAQ
The spring-applied collet engages immediately, providing a 900 N static holding force to keep the rod at its current position. It is a fail-safe lock, not a dynamic brake, so it only engages after the rod stops.
The double-rod design provides equal drive force both ways: 528 N at 0.5 MPa and 739 N at 0.7 MPa (max 75 kgf). The integrated fail-safe rod lock provides a separate 900 N static holding force.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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